Biology and control of tree hoppers injurious to fruit trees in the Pacific Northwest
- Source:
- Technical bulletin (United States. Dept. of Agriculture) ; no. 402 1934
- Year:
- 1934
- Subject:
- Fruit -- Diseases and pests -- Northwestern States and Treehoppers
- Format:
- 46 p., 8 p. of plates : ill. ; 23 cm.
- Publisher:
- U.S. Dept. of Agriculture
- Collection:
- Organic Roots Collection